abstract：か瘾公子:<!DOCTYPE html><html dir="ltr"> <head> <meta charset="utf-8"> <title>伍少微博输入</title> &n
か瘾公子:
<!DOCTYPE html>
<html dir="ltr">
<head>
<meta charset="utf-8">
<title>伍少微博输入</title>
<style type="text/css">
body{font-size: 10px;}
.box{
width: 600px;height: 150px;border:10px solid gray;margin:0px auto;padding: 10px; }
img{float: left;}
.box1{float:laft;margin-left: 420px;width: 150px;height: 24px;text-align: right;font-size: 14px;color: #888;}
.box1 span{float-left： 16px；font-weight: bold;}
#text{width: 600px;height: 100px;border: 1px solid #888;margin-top: 5px;}
.box #sp1,#sp2,#sp3,#sp4,#sp5,#sp6{float: left;width: 26px;height: 28px;line-height: 32px;padding-left: 26px;}
#sp1{background: url(images/an5.png)no-repeat left center;}
#sp2{background: url(images/an2.png)no-repeat left center;}
#sp3{background: url(images/an3.png)no-repeat left center;}
#sp4{background: url(images/an4.png)no-repeat left center;}
#sp5{background: url(images/an1.png)no-repeat left center;width: 60px;}
#sp6{margin-left: 130px;margin-right: 20px;color: #888;}
#bt{float: left;width: 80px;height: 26px;border: none;background: #ffc09f;color: #fff;}
</style>
<script type="text/javascript">
var text,number,m
window.onload=function (){
text=document.getElementById('text')
number=document.getElementById('number')
bt=document.getElementById('bt')
text.onkeyup=function aa(){
m=140-text.value.length//微博限制字数是140
if(m<0){
number.style.color="red"
}else{
number.style.color="#888"
}
number.innerHTML=m;
} bt.onclick=function(){
if (m==140) {
alert("你还没有输入")
text.focus()
}else if(m<0){
alert("字数太多，不可以发布")
text.focus()
}else{
alert("发布成功")
}
か瘾公子:
[图片]
Correcting teacher：灭绝师太Correction time：2019-03-20 09:32:41
Teacher's summary：作业提交不全面,下次提交的时候注意一下哦!